Chicken Hawk Racing Privateer Dual Temp Tire Warmers - 250 GP/Supermoto CHR P-SBK-15Allow for fast cornering from the first lap makes tire last longer Saves heat cycles so tires dont age by being heated and cooled Highest watt density650 watts rear and 500 watts front Slow, yet powerful, the warmer permeates the tire carcass with stable heatattaining hot tire pressure Neoprene side panels insulate the wheel and ensure proper fit Back n forth heater design provides even heating Carbon and poly insulation for better heat retention